package qingke.chat;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import qingke.pojo.Information;

/**
 * Servlet implementation class ChatMessageServlet
 */
@WebServlet("/ChatMessageServlet")
public class ChatMessageServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public ChatMessageServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		response.setCharacterEncoding("UTF-8");
		List<Information> ins = (List<Information>)request.getServletContext().getAttribute("information");
		if(ins == null){
			ins = new ArrayList<Information>();
		}
		String allmsg ="";
		for (Information in : ins) {
			allmsg +=(in.getUsername()+"||"+in.getTime()+"||"+in.getMessage()+"||");
		}
		allmsg = allmsg.equals("")?allmsg : allmsg.substring(0,allmsg.length()-2);
		response.getWriter().append(allmsg);
	//	response.getWriter().append("Served at: ").append(request.getContextPath());
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}
